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stdenvAdapters: add useMoldLinker

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Artturin 2023-02-17 05:18:19 +02:00
parent b5abc3d090
commit 299a7bd35e
1 changed files with 22 additions and 0 deletions
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22
pkgs/stdenv/adapters.nix
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@ -189,6 +189,28 @@ rec {
});
});
useMoldLinker = stdenv: let
bintools = stdenv.cc.bintools.override {
extraBuildCommands = ''
wrap ld.mold ${../build-support/bintools-wrapper/ld-wrapper.sh} ${pkgs.mold}/bin/ld.mold
wrap ld ${../build-support/bintools-wrapper/ld-wrapper.sh} ${pkgs.mold}/bin/ld.mold
'';
};
in stdenv.override (old: {
cc = stdenv.cc.override {
inherit bintools;
};
allowedRequisites =
lib.mapNullable (rs: rs ++ [ bintools pkgs.mold (lib.getLib pkgs.mimalloc) (lib.getLib pkgs.openssl) ]) (stdenv.allowedRequisites or null);
# gcc >12.1.0 supports '-fuse-ld=mold'
# the wrap ld above in bintools supports gcc <12.1.0 and shouldn't harm >12.1.0
# https://github.com/rui314/mold#how-to-use
} // lib.optionalAttrs (stdenv.cc.isClang || (stdenv.cc.isGNU && lib.versionAtLeast stdenv.cc.version "12")) {
mkDerivationFromStdenv = extendMkDerivationArgs old (args: {
NIX_CFLAGS_LINK = toString (args.NIX_CFLAGS_LINK or "") + " -fuse-ld=mold";
});
});
/* Modify a stdenv so that it builds binaries optimized specifically
for the machine they are built on.